Machine for uniting soles to uppers



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L. GODDU.

MACHINE FOR UNITING SOLES. T0 UPPBRS- N0. 490,622. Patented Jan. Z4, 1893.

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L. GODDU. MAGHINE- FOR UNITING SOLES To UPPBRS.

No. 490,622. yPatented Jan. 24, 1893.

(No Model.) 5 Sheets-Sheet 3.v

L. GODDU. MAGHINE POR UNITING SOLES T0 UPPERS.

No. 490.622. Patented Jam 24, 1893.

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L. GO'DD. MACHINE POR UNITING SOLES T0 UPPBRS. No. 490,622# Patented Jan. 24', 1893;

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MACHINE FOR UNITING SOLES To ITP-PERS.

No. 490,622. Patented Jan. Z4, 1893.

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Nima rares PATENT Ormea.

LOUIS GODDU, OF WIN CHESTER, ASSIGNOR TO JAMES W. BROOKS, PRINCI- PAL TRUSTEE, OF PETERSHAM, AND FRANK F. STANLEY, ASSOCIATE TRUSTEE, OF SVAMPSOOTT, MASSACHUSETTS.

MACHINE FOR UNlTlNG SOLES TO UPPERS.

SPECIFICATION formingpart of Letters Patent No. 490,622, dated January 24, 1893.

Application filed April 7, 1892. Serial No. 428,152. (No model.)

.T0 all whom it' may concern.-

Be it known that I, Louis GoDDU, of Winchester, county of Middlesex, State of Massachusetts, have invented an Improvement in Machines forUniting Soles toUppers, of which the following description, in connection with the accompanying drawings, is a specification, like letters and gures on the drawings representinglike parts. h

This invention has for its object toimprove and simplify the construction of that class of machines for uniting soles to uppers in which is employed a rotating spindle containing a screw-threaded Wire, which latter, as it is rotated, has its free end screwed into the material for a greater or less distance according to the thickness of the material, the latter resting upon a suitable horn or work-support. The o Wire, when inserted into the material for a distance equal to the length of the fastening required at that point in the material, is cutoff close to the material, and, the latter having been fed over the Work-support, the end of the wire is again inserted and again cut off to form a fastening, this operation being continued.

The machine herein to be described is intended as an improvement on that shown in United States Patent No.403,835, wherein the wire is fed by feed-rolls located at the lower end of the spindle, the said feed-rolls maintaining a continued hold on the wire.

The particular features in which my invention consists will be hereinafter particularly described and set forth in the claims at the end of this specification.

Figure l, in side elevation, represents the upper part of a machine embodying my present invention, together with part of the horn. Fig. 2, a like view of the lower part of the machine, Figs. l and 2 showing an entire side view of the machine, the horn end being broken off. Fig. 3 is an enlarged partially sectional detail of the spindle, together with the worm gears engaged by the worm carried by the spindle; Fig. 4 is a yet further enlarged sectional detail of that part of the spindle containing the brake to prevent retrograde motion of the wire; Fig. 5 is an enlarged sectional detail, in the line fr, Fig. 3; Fig. (5, a partial vertical section also greatly enlarged, taken through one side of the spindle in the line of the friction device, said line beingindicated by a," in Fig. 5; Fig. 7 is a partial rear end elevation of the parts shown in Fig. l; Fig. 8, a somewhat enlarged detail of the cutters and the oscillating segment for actu- A developed; and Fig. 14 shows the gripper-v carrying sleeve r5 detached.`

Referring to thedrawings, A represents a suitable column, upon which is mounted a head AX, the latter being of suitable shape and having suitable bearings for the different working parts to be described. The column has, as represented, a sort of sleeve BX, which receives the shank B of a suitable horn or work-support. B. The shank B at its lower end has connected with it a suitable screw rod B2, having an adjustable nut B6, against the under side of which bearsa spring B4, the said spring being seated on asuitable washer B5, so that the spring normally acts to elevate the horn and keep it in contact with the fixed nose f, which rests against the upper side of the work or material'into which is to be inserted the threaded end of the wire to be cut off to form a fastening. The rod B2 is connected to one end of a lever B3, to the opposite end of which is connected a rod B8, in turn jointed in an adjustable manner to a lever B9, having its fulcrum at B15, the shape of the said lever being best shown in Fig. 13, the said arm having a U-shaped extension BM, provided with a roller or other stud B10` which enters a suitable groove in a cam B13, fast upon the cam-shaft B14. The shank B has extended from it an arm G, to the outer end-of which is joined avmeasuring-rod G',

the upper end of which enters a suitable "i:

Ajointed by a pin G4 to one arm of a threearmed lever D14, having its fulcrum at D15. The lever D14 is acted upon by a rod l2, sur- IOO rounded by a suitable spring 14, the upper end of which enters a hollow bearing 15, into which is screwed a tubular adjusting screw 1G, into which in turn enters the upper end of the rod 12, the rotation of the screen-the end of which acts directly on the upper end of the spring,--increasing the tension of the spring. This spring normally acts to keep the roll D10, carried by one arm of the lever D11, pressed toward the cam projections at the face of the cam D17, see Fig. 13, said cam having two projections to vibrate the said lever twice during each rotation of the camshaft B14, upon which it is mounted.

The position to which the measuringrod G is elevated by the rising of the horn in contact with the under side of the material,- the horn being acted upon by the spring 134,- will vary more or less according to the thickness of the material at the point where the screw-threaded wire is to be inserted into the stock, and consequently the upper end of the rod G upon which the measuring-leg G3 rests, by occupying different positions, will permit the roller D1G to enter more or less the notches or spaces of the cam D11, so that more or less of the cam grades of the said cam will act to move the lever D14 more or less according to the thickness of the stock, and consequently according to the length to which the wire is to be fed for the fastening next to be cut off, the said lever D11 being employed for that purpose.

The column A has erected upon it a studscrew H, upon which is placed a hub H of a kneelever H3, having at its inner end sector teeth 20, which engage like sector teeth upon a block 21, secured to the lower end of a rockshaft 22, having bearings at 23, 24. This rockshaft has clamped to it a block 25, notched at its inner end to leave lugs which, as the rockshaft 22 is turned by the knee-lever, may be made to act upon a toe 2G, see Fig. 12, of a stop 27, pivoted at 2S, and turn the said stop about the said pivotwhen it is desired to throw out of operation or to continue in operation the feed mechanism for the wire.

The measuring-rod G3 has clamped upon it a foot 40, shown as a block having a downward extension, which, when the stop 27 is in one position, is free to enter the large hole in the said stop; but when the said stop is turned to one side, as described, by the kneelever, the said extension meets the top of the stop, and so long as the said stop remains in such position the lever D14 will not be moved to feed the wire.

The head of the machine has suitable bearings D7 and DS for the hollow spindle A10, through a central passage of which is led the screw-threaded wire to be inserted in the stock, said wire being taken from a spool d10, mounted upon a stud (L21, to be described, the said stud passing through a forked or bifurcated portion as of the spindle, between which parts the spool is mounted so that the axis of the spool is substantially in the line of the center of rotation of the shaft.

The upper end of the spindle above its bifurcated part d0, is extended through the bearing D7, and has fast upon it a pulley A0, which is driven by a suitable belt extended over idle pulleys A8, and thence down and over a pulley A5, loose on a power-shaft A3, provided with a suitable belt pulley A4, driven by a belt from any suitable counter'shaft, the said pulleys each having at their contiguous sides, one a conical projection and the other a conical cavity, to act as friction-clutch pulleys, the loose pulley A5 being pushed in driving contact with the face of the pulley A1, so as to be rotated therewith Whenever the operator puts his foot on the lever A7 and elevates the wedge A0 so that its beveled end acts against the beveled end of a block surrounding the shaft A11 between the said rod A6 and the hub of the loose pulley.

The bearing D8 has at its opposite sides guides D0, over which is fitted a yoke D10, the lower end of which has a hole through which is extended the spindle A10, the edges of the opening of the yoke about the spindle being preferably provided with small steel washers, see Fig. 3, to constitute tracks, against which run suitable antifriction rolls or balls, one series of which is mounted in a friction-box E10 and the other in a cap-plate c', one of the said series of rolls being marked c2.

The cani B13 at its periphery has two toes C, C2, which, in the rotation of the cam-shaft, come in succession against a projection 2, secured in an adjustable manner by a suitable setscrew 200, see Fig. 7, to one end of a lever C, having its fulcrum on the shaft B15, the 0pposite end of the said lever having, as represented, two arms, one of which is kept against a suitable stop C17 by a spring 112, it acting upon a rod 113, the rod entering a hole in the end of an adjusting-screw 114, provided with a check-nut 115 by which to hold it in adjusted position, the upper end of the screw acting against the said spring, the upper end of the spring in turn acting upon a suitable collar on the rod, the adjustment of the stop C17 being such as to keep the point of the projection 2 justin range with the toes C', C2, but so as not to touch the periphery of the said cam. The spindle has a worm 7L, which engages and rotates a worm gear h2, fast on and rotating the camshaft B11.

The parts so far described and referred to by letters and figures of reference are common to the Patent No. 403,835.

The cam D17, see Fig. 10, is provided, substantially at the point of its greatest throw, with movable or yielding sections mx, herein represented as blocks, fitted by suitable dovetails or otherwise to slide in the said cam in the direction of the said shaft, upon which it is mounted. The Worm 7L also engages a worm gear 7L? on a shaft hs, having its bearings in two hubs L0, 7L10, see Fig. 1, the latter having TOO a sleeve-like extension upon which is clamped a collar h12, having an inclinedv or beveled face or toe R13, see Fig. 10, which, in the rotation of the said cam, cornes in contact with the rear end of each sliding section m, and holds said section in such position that its opposite end forms a working continuation of the earn D1T when its point of greatest throw is acting upon the roll D10; but as soon as the said movable section has acted upon the roll D10 to move the lever D11in a direction to complete the feeding stroke, the rear end of the said section passes the toe h13, letting the said section fly quickly back, which instantly allows the spring 12 to turnthelever D14 in a direction to raise the feeding sleeve m and release the gripperlevers n, n, to be described, from the wire. j

The opposite end of the lever C has convnected to it by a studA C3 the upper endof a link C5, which at its lower end embraces a rod 116, mounted in one end of an arm O8, the hub of which is split, as represented in Fig. 7, which split hub is clamped by a clampingscrew 117, shown by dotted lines in said figure, upon a hollow rod or shaft C0. This lshaft C0, made hollow for sake of lightness, has, see Fig. 7, a double segment 00X, having two `series of teeth 11S and 119, the teeth 119 being farthest from the center of oscillation of the said shaft. The teeth 118 engage teeth 120 of an arm 121, while the teeth 119 engage teeth 122 of an arm 123.

The head of the machine has a bearing-stud 124, the front end of which is shown inFig. 9, in order that it may be screwed into the threaded hub 125 of the cutter arm 121, the said hub, projecting from the rear side of the said arm, entering a hole in the cutter arm l123, so that the said arm 123 turns on the said hub. The cutter arm 121 has a cutter 127, while the arm 123 has a cutter 128, each being adjustably held in suitable grooves at the lower ends of the arms by suitable clampingscrews 129. A suitable spring, as 131, acts normally to keepV the jaws or arms carrying the cutters separated.

From the foregoing it will be ,understood that whenever, in the rotation of the cam B13, the toes C', C2 strike the projection 2, the lever C will bemoved to move the link C5 in the direction of the arrow next to it, and cause the rotation of the shaft C0 and the segment 00X in a direction to cause the approach of the arms and make the cutters enter and sever the wire, this being done, however,only after the end of the wire has been screwed into the stock.

The spindle A10 is provided at its lower end with a slotted extension p, having a nose p', the said extension being represented as connected to a tubular part p2, see Figs. 3 and 4, the part p2, see Fig. 4, being screwed into the part p, a chamber p3 being left in the part p for the reception ofa spring p4, which sustains a brake or clamp 135, composed preferably of two or more separate like blocks tapered exthe end of the partp, holding the partsp and p2 together.

The upper end of the part p2 is threaded at p8 and has screwed upon it a long nut p0, having, as shown, a flaring or trumpet mouth into which enters the threaded wire, to be taken from the spool d10 through the spindle. The spindle extension phas ashoul-` der 4 to abut against the lower end of the main body of the spindle A10, and just above the shoulder the extension is provided with a series of teeth p10, which engage a series of slots p12 made in the interior opening of the main body of the spindle, to thus obviate rotation of the spindle extension Ain the said main body.

The main body of the spindle is iiuted eX- ternally, as at r, for a portion of its length, the utes being in the direction of the length of the spindle andj starting from the lower end thereof, but some of the iutes of the spindle are cut away for some distance, as at r', to thus leave liat bearing surfaces at two or more points against which bear certain friction devices, r2, to bedescribed, preferably made of leather or other suitable material and attached to gibs r3, secured by suitable screws or adjusting` devices r4 to ears of a gripper-carrying sleeve r, fluted internally, as at T0, to be engaged by the external iiutes of the main body of the spindle, so that the said gri pper-carrying sleeve is rotated in unison with the said spindle and yet the said gripper carrier is so applied to the spindle that it ina-y be reciprocated vertically on the said spindle when the force with which the friction surfaces bear against the spindle is overcome. ,The gripper-carrier has lugs or ears 5, which receive the pivots or fulcra 6 of the gripper levers n, having inclines or shouli ders at their outer sides near their lower ends,

and provided below said inclines with fingers or thin points which, extended through the slots in the spindle extension, grip and feed the wire as the said gripper levers descend. The gripper-carrier has slots f7 through which pass the friction devices r2 to engage the spindle. The gripper-carrier also has two or more projections rs, extended partially about the carrier and grooved, as shown in Fig. 6, for the reception of a lip r1 at the lower end of one of the gibs r3.

Surrounding the gripper-carrier is an outer or feeding sleeve o, the lower end 0 of which is beveled internally to co-act with the bevel 7 of the gripper levers, as in Fig. 3, to close the said levers onto the wire, not shown. The smaller upper end o2 of the outer or feeding` sleeve is smooth internally7 and fits the sm ooth exterior of the main body of the spindle above its tlutedportion, and the'extreme upper end of the outer sleeve has screwed or attached to it the cap-plate c', resting on`rolls or halls c2, supported by the yoke D10. The outer or feeding sleeve has one or more slots, as S, for

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the gibs r3 referred to, the length of the slots being a little greater than that of the gibs, so as to leave a space, as 10. The descent of the outer or feeding sleeve on the spindle 5 is effected through the slide D10, before described, moved however for a variable distance according to the thickness of the material, to receive the fastening next to be made. In the descent of the outer or feeding sleeve its lower end acts on the inclines 7 of the gripper levers and closes their lower ends on the wire, so that the said wire is held and fed longitudinally out through the nose p and is screwed into the material on the horn by rapid revolution of the spindle. During the feeding movement of the wire, as described, effected by the descent of the outer sleeve, the upper ends of the slots 8 in the sleeve do not touch the gibs, but the entire force of the outer sleeve is expended on the gripper levers to keep them closed o'n the wire to feed it and screw it into the material, and during this feeding movement ofthe outer sleeve the gripper-carrier is pushed downwardly on the spindle by the action of the outer sleeve on the beveled parts 7 of the gripper levers, and the friction devices r2 slide on the spindle. The wire having been screwed into the material, and the cutters having been made to cut off the wire close to the material, the outer or feeding sleeve is lifted by or through the action of the spring 12 on the lever D11, and at the commencement of said upward movement the feeding sleeve leaves the beveled parts 7 of the gripper levers, permitting the latter to release the wire, and then the lower ends of the slots S strike the lower ends of the gibs r3, and thereafter the gripper-carrier is made to rise with the feeding sleeve and the friction pads r2 slide upwardly on the spindle, the friction of the pads onthe spindle being overcome by the upward movement of the feeding sleeve.` After the wire has been screwed into the material for the proper distance, the cutters will be closed to grasp the wire and cut the same off close to the material, but during this operation the rotation of the spindle will be continued at its full speed. The wire is cut off, as stated,

5o to form a fastening between the completion of the feeding stroke of the gripper levers and the completion of the backward stroke thereof over the wire.

In practice, when about two hundred and fifty fastenings are being inserted per minute, which may be done, the time consu med in cutting off the wire at the surface of the material is buta small fraction of a second, and should the gripper levers hold the wire close to the cutters while the latter acts to cutoff the rapidly rotating wire, the end thereof where the fastening is cut from the wire will be left dull, or will be marred or blunted, so that it is not in its best and proper condition to enter the material.

In another application, Serial No. 428,151, filed by me, I have made provision for acting upon the Wire and preventing retrograde or backward movement thereof, at such a distance from the non-rotating cutters that the wire is permitted to yield to torsion between the point where it is grasped by the cutters and the point where it is engaged by the brake therein referred to, and when the cutters cornplete their action the torsional twist is quickly dissipated, and as a result the end of the wire is cut off and left withasort of chisel or even point, a point which will readily enter the material. In this present invention, however, the brake or device which engages the wire to prevent retrograde movement is located at or near the lower end of the spindle or near the fulcra of the gripping levers, and hence the amount of wire left which may yield to torsion, as stated, is so greatly reduced that it becomes necessary to eifect the soonest possible release of the gripper levers from the wire as the feeding stroke of the gripper levers is completed. Herein, in order to release the gripper levers earlier than would be possible with a cam such as contained in the case referred to, I have provided the cam D17 with the movable sections mx, which are located substantially at the point of greatest throw of the cam, so that the instant that the said lever D14 has completed its stroke to insure the completion of the feeding stroke of the sleeve and the gripper levers, the said movable section drops back, letting the spring 12 or other device which moves the said lever D14 in the direction opposite the movement thereof, imparted toit by the cam D11, assume quick control of the lever and raise the feeding sleeve sufficiently to instantly relax the hold of the gripper levers upon the wire, thus leaving all that portion of the wire between the cutters and the brake p5 to be subjected to and receive the torsional strain found necessary to avoid blunting ormarring the end of the wire while in contact with the cutters. The foot f, and the shoe-feeding mechanism mm1?, and its actuating devices, are and may be all as in the said patent or as in said application, so need not be herein further described.

I claim 1. In a machine for inserting screw-threaded wire into soles of boots and shoes, leather, tbc., the following instrumentalities, viZ:-a continuously rotating longitudinally slotted spindle having external projections and grooves; a feeding sleeve surrounding the said spindle loosely; a gripper-carrier interposed between the said sleeve and the said spindle and having projections and grooves at its inner side to engage the projections and grooves of the spindle, and wire grippers entering the slots of the said spindle, gripping the wire, and made movable by the said gripper-carriers in said slots in the direction of the length of the spindle during its rotation to feed the wire through the said spindle, substantially as described.

2. In a machine for inserting screw-threaded wire into soles of boots and shoes, leather,

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&c., the following instruinentalities, viz:a continuously rotating longitudinally slotted spindle having external projections and grooves; afeedingsleeve surrounding the said spindle loosely; a gripper-carrier interposed between the said sleeve and the said spindle and having projections and grooves at its inner side to engage the projections and grooves of the spindle; wire grippers pivotally mounted upon said gripper-carrier and enteringthe slots of the spindle to grasp the wire, the gripper levers entering slots in the said spindle and made movable in the said slots in the direction of the length of the spindle to feed the wire through the said spindle; and a friction device connected with the gripper-carrier and engaging and rotating the feeding sleeve in unison with it and with the spindle, substantially as described.

3. In a machine for inserting screw-threaded wire, the following instrumen talities, viZ:--' a continuously rotating spindle provided with longitudinal grooves and projections, andhaving an extension slotted for the reception of gripper levers; a gripper-carrier surrounding the said spindle and having grooves and projectlons to be engaged and rotated by the spindle; wire-feeding gripper levers mounted' on the said gripper-carrier; a feeding sleeve loosely mounted vupon the said spindle and having a beveled or inclined portion; and a friction device extended therein to enable the y feeding sleeve to be reciprocated for a slight distance before it takes with it the grippercarrier, substantially as and for the purpose described.

4. In a machine for inserting screw-threaded wire, the followinginstrumentalities,viZ:- a hollow continuously rotating spindle; its surrounding gripper-carrier; gripper levers pivoted thereon and having inclined or beveled shoulders below their pivots; and a feeding sleeve having suitable bevels or inclines to act upon the bevels or inclines of the gripper levers and cause the latter to grasp the wire, and devices to actuate the said feeding sleeve vertically on and during the rotation of said spindle and independently of and vertically with relation to the length of the said gripper levers, substantially as described.

5. In a machine for inserting screw-threaded wire, the following instrumentalities, viz:- a hollowr continuously rotating spindle; a surrounding gripper-carrier, each connected with the other by suitable grooves and projections so that the carrier rotates in unison with the spindle but is free to be moved vertically thereon; wire-feeding grippers pivoted upon the said gripper-carrier; a feeding sleeve having beveled or inclined surfaces to act upon and close the grippers upon the wire in the downward motion of the feeding sleeve; a friction device carried by the gripper-carrier and engaging a part of the spindle, the said friction device also engaging and rotating the feeding sleeve with the gripper-carrier and spindle; and means to adjust the friction of the friction device upon the spindle, as and for the purposes set forth.

6. The rotating spindle; its surrounding gripper-carrier, each connected with the other .by suitable grooves and projections so that the carrier rotates in unison with the spindle but is free to be moved vertically thereon; wire-feeding grippers pivoted upon the said gripper-carrier; a feeding sleeve having beveled or inclined surfaces to act upon and close the gripper levers upon the wire in the downward motion of the sleeve; a friction device carried by the gripper-carrier and engaging a part of the spindle, the said friction device also engaging and rotating the feeding sleeve with the gripper-carrier and spindle; means to adjust the friction of the friction device upon the spindle; and a brake or check for the wire, said brake having a beveled and tapered surface and being free to move longitudinallyin the said spindle, substantially as described.

7. The rotating spindle; its surrounding gripper-carrier, each connected with the other by suitable grooves and projections so that the carrier rotates in unison with the spindle butisfree to be moved verticallythereon; wirefeeding grippers pivoted upon the said gripper-carrier; a feeding sleeve having beveled or inclined surfaces to act upon and close the grippers upon the wire in the downward motion of the sleeve; a friction device carried by the gripper-carrier and engaging a part of the spindle, the said friction device engaging and rotating the feeding sleeve with the grippercarrier and spindle; means to adjust the friction of the friction device upon the spindle; a brake or check composed of two or more parts shaped externally to resemble a cone; and a spring to act upon end of the said brake to aid in keeping the same in proper contact with the wire to thus maintain the proper amonntof friction, substantially as described.

' 8. In a machine for inserting threaded wire into soles of boots and shoes, &c., the following instrumentalities, vizz-a hollow spindle;wirefeeding grippers; a carrier therefor; a lever, as D14; intermediate devices between said lever and said gripper-carrier to reciprocate the gripper-carrier and cause the grippers to grasp and release the wire; an actuating cam for said lever, the said cam havinga movable section near its point of greatest throw; and a co-operating toe, whereby the said lever is released instantly, as described, to enable the wire-feeding grippers to be released from the wire, as and for the purpose set forth.

9. The continuously-rotating wire-carrying spindle, and its slotted extension composed of two parts containing a chamber, andavertically-movable wire-holding brake located in IOO IIO

said chamber, and a loose yielding support in said chamber between it and the brake, substantially as described.

l0. In a machine for inserting` metallic fastenings, a continuously rotating wire-carry ing-spindle having a yoke at its upper end and slotted and chambered below that point for the reception of abrake and of Wire feeding devices, combined with a reel carrying the wire to be fed through the spindle, a ver tically movable Wire holding brake, and a wire feeding device located at a distance below said brake and close to the end of the spindle, and means to reciprocate the Wire feeding devices, to operate, substantially as described. 1l. The continuously-rotating Wire-carrying spindle, and its slotted extension coinposed of two parts containinga chamber, and averticallymovable wire-holding brake made in pieces and having a tapering upper end to engage a tapering part of the spindle extension and located in said chamber,and aspring to act against said brake, substantially as described.

12. In a machine forinserting screw-threaded Wire into soles of boots and shoes, leather, dac., the following instrumentalities, viz:-a continuously-rotating longitudinally slotted spindle having external projections and grooves, a feeding sleeve surrounding the said spindle loosely, a lever, as D, connections between said lever and said feeding sleeve, a measuring leg connected with said lever; a horn; intermediate devices located between said measuring leg and said horn and varied in position with relation to the measuring leg by or through differences in thickness of material upon the horn, a gripper carrier interposed between the said sleeve and the said spindle, and having projections and grooves at its inner side to engage projections and grooves of the spindle that they may rotate in unison, and lever-like Wire grippers pivotally mounted on and carried by the said gripper carrier, the points of the grippers entering the slots, in the spindle and engaging the wire, the gripper carrier in its descent acting upon the gripper levers, forcing them i11- Wardly against the wire and thereafter moving the gripper levers downwardly with it during the feeding of the wire longitudinally through the spindle, as and for the purposes set forth.

13. In a machine for insertingscrew-threaded wire, the following instrumentalities,viz:- a hollow continuously rotating spindle; a loosely connected gripper carrier; grippers pivoted thereon, andu made as levers having beveled or inclined surfaces; a hollow feeding sleeve surrounding said gripper carrier and also the upper ends of said gripper levers, and devices to reciprocate the said feeding sleeve vertically with relation to both the gripper-carriers and the said spindle, and adapted to act on said gripper levers below their pivots to thus cause the said gripper levers to engage firmly the wire; and friction devices, to operate, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LOUIS GODDU. lVitnesses:

Guo. WT. GREGORY, FRANCES M. NOBLE. 

